The International Civil Aviation Organization (ICAO) has joined the Supporting Alliance for CORSIA Eligible Emissions Unit (EEU) Supply, strengthening an IATA-led effort to address shortages ahead of the scheme’s first compliance cycle. The alliance, comprising more than 80 stakeholders, will help countries authorise eligible units while avoiding double counting and aligning CORSIA requirements with Paris Agreement obligations.
The announcement was made in Brussels during IATA’s World Sustainability Symposium. The alliance also provides technical expertise and practical resources to countries participating in carbon markets and implementing Article 6.2 of the Paris Agreement.
CORSIA’s initial compliance cycle is expected to require approximately 200 million to 250 million EEUs. As of August 2026, 42 CORSIA-compatible Letters of Authorisation covered 72 million units, compared with 40 million at the beginning of the year.
ICAO Deputy Director, Environment Tetsuya Tanaka said the organisation’s participation would strengthen cooperation among governments, airlines and carbon-market stakeholders to support sufficient EEU availability. ICAO’s entry does not represent the issuance of additional units or a new quantified supply commitment, and the announcement provided no timetable for increasing issuance.